What is plant pathology?

• It is the scientific study of plant diseases caused by pathogens (infectious organisms) and environmental conditions (physiological factors.

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Some of the factors that can cause plant disorders:

• Insects• Weeds• Pathogen (disease)• Nutrient deficiencies

Aphids

Bagworms

borers

grubs

Leaf miners

Mealy bug

scale

Whiteflies

Spider mite

Japanese Beetle

Beneficial Insect

Lady Bug

Preying Mantis

Lace-wing

Plant Fungus

Black Spot

Powdery Mildew

Root Rot Disease

Sooty Mold

Wilt

Nitrogen Deficiency

Insecticide

Backpack Sprayer

Manufacturer’s Safety Data Sheet

Disposable chemical suit

Herbicide

Round-up

Hairy bittercrest

dandelion

White clover

Wild garlic

Annual bluegrass

Integrated Pest Management

Controlled burn

fertilizer

Life cycle of a plant disease (root rot)